﻿package java;

public class tesemianji {
public static void main(String[] args) {
	mianji n=new mianji();
	int bianchang=2;
	int gao=2;
	int banjing=2;
	double pai=3.14;
	n.showSanjiaoxing();
	n.showYuan();
	n.showZhengfangxing();
}
}
